The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2015
Filed:
Apr. 04, 2013
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute-shi, Aichi-ken, JP;
Nobuhiro Ogihara, Nagakute, JP;
Takao Inoue, Nagakute, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute-shi, JP;
Abstract
An electrode active material of the present invention is made of a layered composition including organic backbone layers containing an aromatic compound that is a dicarboxylic acid anion having a naphthalene backbone; and alkali metal element layers containing an alkali metal element coordinated to oxygen contained in the carboxylic acid anion to form a backbone. The layered composition has an interplanar spacing between (002) planes of 0.42400 to 0.42800 nm, an interplanar spacing between (102) planes of 0.37000 to 0.37600 nm, an interplanar spacing between (211) planes of 0.32250 to 0.32650 nm, and an interplanar spacing between (112) planes of 0.30400 to 0.30700 nm, as measured by X-ray diffraction. Preferably, the layered composition has an interplanar spacing between (200) planes of 0.50500 to 0.50950 nm as measured by X-ray diffraction.